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KCET2009MathematicsCircle

A cow is tied to a post by a rope. The cow moves along the circular path always keeping the rope tight. If it describes 44 ~m , when it has traced out 72^ at the centre, the length of the rope is

Options

  1. A22 ~m
  2. B56 ~m
  3. C45 ~m
  4. D35 ~m

Correct answer

D. 35 ~m

Step-by-step solution

aligned & Length of arc =2 r 360^ & 44=2 22 7 r 72 360 & r = 44 7 5 44 =35 ~m aligned which is the length of the rope.

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